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Item#: N82E16811112337

LIAN LI Lancool First Knight Series PC-K9WX Black Aluminum / Steel ATX Mid Tower Computer Case

  • Aluminum / Steel ATX Mid Tower
  • USB 3.0 x 2 / HD Audio Front Ports
  • 2 External 5.25" Drive Bays
  • 6 Internal 3.5" Drive Bays
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Simple and stylish, as LIAN LI always be. The LIAN Li Lancool First Knight Series PC-K9 comes equipped with two front 140mm fans and one rear 120mm fan for efficient cooling. The front I/O panel hosts two USB 3.0, one e-SATA and audio in/out jacks. The tool-less design for PCI cards, PSU and ODD, adjustable HDD rack and cable management system make installation fast, effortless and clutter-free.

This case supports up to 415mm long video card with HDD cage removed and liquid cooling, making it ideal for the top-of-the-line graphics cards in combination with the best thermal dynamics.

  • newegg High Thermal Performance Two 140mm fan (front) and one 120mm fan (Rear) keep hot air from damaging your hardware.
  • newegg Adjustable HDD Rack Directly behind the intake fans, six 3.5" HDDs and four 2.5" can be mounted, secured using thumb-screws with rubber-suspension. Users can choose for their HDDs to face forward or backward, as desired.
  • newegg USB 3.0 Multi-media I/O Ports Users can easily access USB 3.0 and HD Audio ports.
  • newegg Tool-less Design The LIAN Li PC-K9 comes with 7 tool-less PCI card holders to secure PCI add-on cards. Simply close the arm in the locked position. It also has a tool-less PSU mount which uses a quick and easy clamp to secure PSUs in position. The tool-less optical drive mounting supports standard 5.25” optical drives.
  • newegg Maximum Video Card Space Up to 415mm long graphics card is supported with HDD rack removed or 285mm without.
  • newegg Cable Clamp Cable-Management Kit for cables to pass through allow users to conveniently manage the cables.

Learn more about the Lian-Li PC-K9WX


Lancool First Knight Series


ATX Mid Tower
Case Material
Aluminum / Steel
With Power Supply
Power Supply Mounted
Motherboard Compatibility
ATX / Micro-ATX / Mini-ITX
With Side Panel Window
Aluminum side panel with transparents window


External 5.25" Drive Bays
External 3.5" Drive Bays
Internal 3.5" Drive Bays
Internal 2.5" Drive Bays
Expansion Slots

Front Ports

Front Ports
USB 3.0 x 2 / HD Audio

Cooling System

120mm Fans
1 x 120mm Rear Fan
140mm Fans
2 x 140mm Front Fans
Side Air duct

Physical Spec

19.88" x 8.27" x 18.58"
18.25 lbs.


Maximum Video Card Size 415mm

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Lian-Li PC-K9WX

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  • Dustin S.
  • 2/9/2013 8:32:25 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFantastic Engineering

Pros: Loacking clasps to hold expansion cards are very well designed and work very smoothly. Very few sharp edges. Wire organizing is phenomenal. There is a plastic snap column that holds all of my wires for the harddrives, fans and power supply.

Cons: I wish the plastic snap column to hold wires was aluminium like the case. But they didn't snap off even with the stress I put on them as I stuffed the column with wires.

Other Thoughts: The clamp to keep the power supply in place is pretty cool, again, great engineering. This is my first Lian Li case and I'm sold. I wish the build was for me as I went well over board with my CMStacker case and wish I got the Lian Li instead.

Did you find this review helpful? Yes No

  • Sam L.
  • 2/7/2013 3:42:58 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsNice

Pros: Lots of space, decent cable management options, no issues installing anything, big window, nice clean look.

Cons: Panels feel really flimsy but I guess that is the design? Also kind of a pain to take on and off, would have liked a door at least for the front.

Not too fond of how it seats things in the 5'' bay. I mean I didn't buy a windowed case to NOT put all sorts of fruity lights on the inside but it would appear that the dvd-rom and fillers do not fit perfectly... showing light in the cracks.

Other Thoughts: Overall nice case, would buy Lian Li again.

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  • Anonymous
  • 1/23/2013 4:21:36 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGreat Case

Pros: Looks awesome, good build quality. External USB and audio ports are covered to reduce dust collecting in them. Filters on front fans and power supply intake.

Cons: Front fans are audible.

Other Thoughts: LIAN LI Lancool First Knight Series PC-K9WX Computer Case
MSI Z77A-GD65 ATX Intel Motherboard
Intel Core i7-3770K Ivy Bridge 3.5GHz
G.SKILL Ares Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory
2X OCZ Vertex 4 VTX4-25SAT3-128G 2.5" 128GB SATA III (SSD) Raid 0
2X Seagate Barracuda ST31000524AS 1TB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" HDD Raid 1
2X EVGA SuperClocked GeForce GTX 660 2GB Video Card in SLI
PC Power and Cooling Silencer MK III 600W Modular Power Supply
Thermaltake WATER2.0 Performer Closed-Loop All In One Liquid CPU Cooler
LG DVD Burner 24X

Did you find this review helpful? Yes No

  • Anonymous
  • 11/1/2012 11:50:13 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsGreat Case

Pros: -Looks very good.
-Fan filters work fantastic, I had an antec 900 before this case and the difference in dust is night and day
-usb 3.0 ports

Cons: the cabling solution it offered didn't seem to meet my needs. I still had a lot of excess cables that I had trouble hiding.

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  • Steven T.
  • 10/28/2012 5:31:02 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsVery Pleased

Pros: Love the brushed aluminum and painted interior, very classy. Adequate amount of cable management. Fans are fairly silent, hear my CPU fan over them. Fan filters are very nice.

Cons: Temps are okay, but I feel like a top fan would benefit the case greatly. Knew it didn't have one going into it though, so no eggs off.

Other Thoughts: Be careful with the plastic on the side panel, I cracked it a bit around one of the rivets while moving it.

Did you find this review helpful? Yes No

  • Valentin S.
  • 10/5/2012 10:10:35 AM
  • Tech Level: High
  • Ownership: less than 1 day

5 out of 5 eggsWhat's happening?

Pros: PSU is at the bottom. Very solid, easy to manage, easy to clean.

Cons: PSU is at the bottom.

Other Thoughts: Two fantastic Lancool cases are discontinued: pc-k7 and pc-k9. What's happening? These are one of the best designed and best looking cases.

Did you find this review helpful? Yes No

  • Hyun J.
  • 9/12/2012 6:20:05 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

2 out of 5 eggsNice Case, Poor Quality Control

Pros: Case looks very stylish, awesome wire management, and large window to show off ur components, and parts are very high quality parts are used.

Cons: Received the case, upon setting up my computer I realzied that I was missing 1 of te 4 clips that hold the front cover, I also reazlied after removing the plastic film covering the side window, I saw a very bad scratch.

Other Thoughts: Really loved the case, I ended up keeping it and lived with the imperfections, just because I didnt want to deal with taking apart my computer and sending my unit for an exchange, and I didnt want to wait another week or two to receive my new on. Probably the last time I'm gonna buy from this manufacturer, cause i'll be too paranoid of receiving another damage unit.

0 out of 1 people found this review helpful. Did you? Yes No

  • David E.
  • 8/17/2012 5:48:20 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsMore Than I Expected!

Pros: The aluminum case keeps nice and cool. The Fans are super silent. I was worried that they would not be because the item said nothing about the volume of the fans and whether they were double of single ball. The hard drive cages are amazingly easy to manage and allow me to connect my drives at the back of the case instead of the side or front. Which improves the airflow a lot. All of the anti-vibration rubber feet and washers really make a noticeable difference. Awesome look! Most cases these days look like a stupid combination of an alien space craft and a race car bed. This one has a modest and stylish look that any adult would be proud to display in their office.

Cons: I have to push the power button down harder than I expected. At first I thought I hooked my computer up wrong. But after double checking, I just pushed harder than I thought I had to and it booted. Now I am used to it.

Other Thoughts: It would be nice if the top panel was an option at purchase instead of an extra add-on. If I ever want to switch to water cooling I will be stuck with the old top panel and be forced to either store it or throw it or recycle it.

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  • timothy k.
  • 7/25/2012 8:39:46 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggs

Pros: It's terrific case. Easy to use, and comes with more screws then I will ever use with it.
The wire management is simple and painless.
Great room for expansion and a solid case overall.

Cons: The only real con I have with the case so far is the fan arrangement and it's air flow. It has two 140MM intakes and only one 120MM output on the back. The case really needs a side or top fan for proper ventilation.

Other Thoughts: Overall an amazing deal, and perhaps one of the best cases in the price range. The fan issue is enough to dock an egg, but I would still buy the case again.

I am going to try some new fans to see if I can boost the performance. Running a 6 core AMD with a crossfire video card setup probably generates more heat than average.

1 out of 1 people found this review helpful. Did you? Yes No

  • Nick Z.
  • 7/22/2012 11:29:27 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs

Pros: Build quality is excellent, the aluminum panels are very clean and professional. All intake fans are filtered, cable management is easy, and it has been a big improvement from my trusty Antec 300. It fits my Hyper 212+ with plenty of clearance, and the CPU cutout is perfect for 1155 CPUs.

Cons: A modular PSU would be ideal as its a little tight getting the back panel on, but not a huge problem.

1 out of 1 people found this review helpful. Did you? Yes No

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Item#: N82E16811112337
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